Nut lock



threaded holt, which. in 3,

pli l THEODORE E. BROWN, OF MIINNEAPOLS MINNESTA, ASSIGNOR, BY :DIRECT .AND

MESNE ASSIGNMENTS, OF ONE-TEUR@ TQ CHARLES E. OVENSHIRE, ONE-THRD T0 JOHN C. MACDONALD, AND 0NETHRD NEAPOLIS. MINNESOTA.

TO EDlAR-D C. OVENEnI-URE, ALL OF MN- NUT LOCK.

Application filed .Tune 23,

To all whom it 071,03/ concern Be it known that l, Trinonomi ll, BnoWN. a citizen of the United States. residing at ldinneapolis,v in the countyv oit Hennepin and State of lllinnesota, have invented rertain new and useful improvements in Nut Locks; and I do hereby declare the 'following lo be full, clear, and enact description olf thc invention, such as will enable others skilled in the art to which it appertains lo .malte and use the saine.

.My invention has 'tor its object to provide an improved nut lock and, to such ends, generally stated, the invention consists el: the novel construction and combinations o ll parts hereinafter described and dclined in the claim.

The improved nut lock or lock nut is made up of a cap and a tivo-part nut, so that the complete lock nut,.\vhen applied. has the ap pearance of a cap nut.

The invention is illustrated in the accompanying drawings, wherein lilfe diameters indicate like parts throughout the several views.

Referring to the drawings:

Fig. l is a perspective showing; a bolt hav ing one oit my improved nut loclrs applied. thereto;

Fig. i2 is a view CorrespondinpT to Fin'. l, but showing the elements oi the nut loch; separated and removed from the bolt:

Fig, 3 is a vievv partl5y in plan and partlv in section showingthe bolt and nut illus'- trated in Fig. l applied to clamp tno plates toffether;

Pig. 4r. is a section on the line l--t ol lli 3, looking upward; and

Fig. 5 is an axial section illustrating; a slightly modified form of, the loeli nut cap.

The numeral 6 indicates an ordinary is applied to clamp together two plates T.

The lock nut comprises a cap 8 and a twopart nut 9. The nut sections 9 may be producedin Various diierent Ways, as, for eX- ample, by sawing into an ordinar "f nut. The nut cap 8 is preterably a stampe steel shell, which, for sanare nuts, would. be et Specification et Letters Patent.

)Patented Ang. il, i922.

i921. serial. No. 479,788.

rectangular contour. @ne or more of the Walls of the cap 8 are obliquelv set in respect to the axis of the nut and bolt, so that tivo opposingr sides ot' the cap are made to converge toward the bottom or open side ol. the cap. Preferably, also. the nut sections Would be correspondingly beveled, and they are, ot course, of such size that when applied to the bolt and Within the cap. the)7 cannot be drawn out ot the cap.

TWhen the complete nut is applied to a bolt as shovvn in the drawings and the nut is screwed onto the bolt, the nut sections will be ver-3T tightly clamped against th e tlneadeifl end of the bolt when the nut is tightened against the objects to be clamped together. Thus, such friction produced `between the threads of the bolt and nut that there is no possibility or probabilitj,7 of the nut becoming accidentally loosened. However, the nut may be screwed oiland reaipiplied, Without damage to the threads ot the nut or bolt. by the application of sidhcient torce in the proper direction.

ln the torni oli cap shown in Fie'. only.'v one Wall of the cap l0 is obliouelf' set, but the cap` in its crown, is *formed with a hole 10h through which the threaded end of the bolt may project.

ln the form oit loclr nut shown in l to 4l, inclusive, the convergence oit the sides of the cap is such that the nut sections ivill not tall out ot' the cap accidentally oven when the nut is removed from the bolt.V

The eflicienc;Y oit this nut loclr. or loclr not has been demonstrated in actual practice.

What l claim is:

A nut lock comprising; a cap and a tivopart nut Within said cap, said cap having Walls that .converge toward its open side and operate to press the nut sections against the threaded end of' a bolt to which the;7 are applied, the convergence of thevvall of said cap beingsuch that the mit sections will not accidentally fall out of the cap when removed from the bolt.

In testimony `lwhereof .ll my signature 

